after i make cd .. end start next step
gitian@gitian:~$ git clone xxx//githubcom/devrandom/gitian-builder.git
Cloning into 'gitian-builder'...
remote: Counting objects: 753, done.
remote: Total 753 (delta 0), reused 0 (delta 0), pack-reused 753
Receiving objects: 100% (753/753), 160.06 KiB | 0...